Infrastructure Setup & Configuration Design and implement a production-ready Keycloak setup aligned with organizational security and scalability requirements Integrate Keycloak with existing cloud infrastructure (e. g., Kubernetes, Azure, etc.) and CI/CD pipelines Configure realms, clients, roles, and identity providers based on project and application needs Documentation and Knowledge Transfer Develop internal documentation on Keycloak architecture, configuration procedures, and operational best practices Create developer guides detailing authentication and authorization flows for application teams Establish operational runbooks for common administrative and maintenance tasks Proven experience deploying and managing Keycloak in production environments Strong understanding of OAuth 2.0, OpenID Connect, SAML, and related identity standards Experience integrating Keycloak with Java Spring Boot and microservice architectures Background in DevOps or Cloud Platform Engineering Prior experience configuring Keycloak and the associated database Strong understanding of security best practices and compliance requirements Fluent Engish speaking skills A responsible project within a large international corporationThe prospect of exciting follow-up missions Ihr Kontakt Ansprechpartner Julia Ebler Referenznummer 864016/1 Kontakt aufnehmen Telefon:+49-(0)211-1793888667 E-Mail: julia.ebler@hays.de Anstellungsart Anstellung bei der Hays Professional Solutions GmbH
Experience or certification in Databricks, SQL data warehousing, Azure Data lakes. Strong experience in SQL, SCALA, Phyton. Desirable knowledge in Java/.net. Knowledge of security protocols and devices such as stateful firewall, IPS, VPN, IPSec, TLS and L2-4 security. Strong initiative and hands-on mentality Strong communication and teamwork skills paired with intercultural competence.
Join our team and shape the future of retail. As a Java Developer at GK – a global leader in retail technology and part of the Fujitsu Group, specializing in checkout, store operations, and customer experience – , you’ll adapt and implement our high-performance solutions to meet the unique needs of international retail clients.
Design and implement integration solutions using MuleSoft Platform to connect the Learning Experience Platform (LXP) with HR systems and external learning providers Take end-to-end ownership of integration solutions — define specifications, guide designs, take architectural decisions, perform unit tests, and ensure successful go-live Ensure integration landscapes align with enterprise standards and the long term platform roadmap Collaborate with engineering and product teams to translate business needs into technical integration requirements Monitor and analyze integration performance, support troubleshooting, and continuous optimization Produce clear documentation of integration flows, decisions, and processes Embed security, privacy, and compliance considerations into all integration activities Experience as a Java Architect with profound Java knowledge Extensive knowledge of the Mulesoft integration platform. Certification (e.g. Mulesoft Certified Developer) is a plus Strong understanding of system integration concepts, API management, and modern integration patterns Experience designing or supporting integration solutions using REST, SOAP, or event driven architectures Familiarity with API testing tools and automated testing practices (e.g., API test suites, CI/CD pipelines) Strong communication and collaboration skills, with the ability to work effectively across technical and non technical teams, managing dependencies, and ensuring transparent status reporting Languages: English (fluent), German (good knowledge) Possibilities to work in a home office A very renowned company Ihr Kontakt Ansprechpartner Olga Fester Referenznummer 864814/1 Kontakt aufnehmen E-Mail: olga.fester@hays.de Anstellungsart Freiberuflich für ein Projekt
Design and implement integration solutions using MuleSoft Platform to connect the Learning Experience Platform (LXP) with HR systems and external learning providers Take end-to-end ownership of integration solutions — define specifications, guide designs, take architectural decisions, perform unit tests, and ensure successful go-live Ensure integration landscapes align with enterprise standards and the long term platform roadmap Collaborate with engineering and product teams to translate business needs into technical integration requirements Monitor and analyze integration performance, support troubleshooting, and continuous optimization Produce clear documentation of integration flows, decisions, and processes Embed security, privacy, and compliance considerations into all integration activities Experience as a Java Architect with profound Java knowledge Extensive knowledge of the Mulesoft integration platform. Certification (e.g. Mulesoft Certified Developer) is a plus Strong understanding of system integration concepts, API management, and modern integration patterns Experience designing or supporting integration solutions using REST, SOAP, or event driven architectures Familiarity with API testing tools and automated testing practices (e.g., API test suites, CI/CD pipelines) Strong communication and collaboration skills, with the ability to work effectively across technical and non technical teams, managing dependencies, and ensuring transparent status reporting Languages: English (fluent), German (good knowledge) Possibilities to work in a home officeA very renowned company Ihr Kontakt Ansprechpartner Olga Fester Referenznummer 864814/1 Kontakt aufnehmen E-Mail: olga.fester@hays.de Anstellungsart Freiberuflich für ein Projekt
WHAT YOU WILL DO Receive requests for support from business users Prioritize requests in accordance with agreed criteria and the needs of the organization in accordance with Service Level Agreements and current processes and procedures Investigate problems and support requests and determine appropriate action Provide correct responses to requests for supportwithin area of competence which include manipulating data, reconfiguring systems, helping to implement changes to operating procedures, training users or operations staff, producing additional documentation, or escalating requests Follow quality standards and policies relating to their technical specialization Liaise with staff responsible for the design and development of system enhancements Be assigned with specific project related tasks APPLICATION YOU WILL USE: Unix / Linux commandShell ScriptingOracle SQL WHAT YOU SHOULD HAVE: Degree in Computer Science, Information Systems or equivalent experience 1-2 years of working experience in performing L2 application support of large enterprise application Must have hands on knowledge on scripting languages like Java script and Shell Script. Good Experience in SQL query on SQL Server, MySQL and Oracle. Must be able to provide 24x7 on-call support on a rotational basis during the weekend and also prepare to work during public holidays Must be able to work on 3 rotational shift (morning, noon and midnight) ITIL Foundation and project management techniques Analytical and conceptual thinking and information acquisition Written and oral expression Ability to interact with people Persistence, initiative, creativity Follow-up, monitoring and decision making Customer Focus Organizational awareness Teamwork WHAT YOU WILL GET FROM US Great team of IT professionals with global working exposureMeal Card and Flexible Benefits – customized according to individual needsOn-going professional and technical training and certifications A multicultural environment in modern offices Choose any day for your vacation from earned public holiday (Saturday and ad hoc)Smart casual everydayGlobal internal job opportunities available within DPDHLUnlimited Outpatient Medical Home office possibilities Sounds good?
WHAT YOU WILL DO Receive requests for support from business users Prioritize requests in accordance with agreed criteria and the needs of the organization in accordance with Service Level Agreements and current processes and procedures Investigate problems and support requests and determine appropriate action Provide correct responses to requests for supportwithin area of competence which include manipulating data, reconfiguring systems, helping to implement changes to operating procedures, training users or operations staff, producing additional documentation, or escalating requests Follow quality standards and policies relating to their technical specialization Liaise with staff responsible for the design and development of system enhancements Be assigned with specific project related tasks APPLICATION YOU WILL USE: Unix / Linux commandShell ScriptingOracle SQL WHAT YOU SHOULD HAVE: Degree in Computer Science, Information Systems or equivalent experience 1-2 years of working experience in performing L2 application support of large enterprise application Must have hands on knowledge on scripting languages like Java script and Shell Script. Good Experience in SQL query on SQL Server, MySQL and Oracle. Must be able to provide 24x7 on-call support on a rotational basis during the weekend and also prepare to work during public holidays Must be able to work on 3 rotational shift (morning, noon and midnight) ITIL Foundation and project management techniques Analytical and conceptual thinking and information acquisition Written and oral expression Ability to interact with people Persistence, initiative, creativity Follow-up, monitoring and decision making Customer Focus Organizational awareness Teamwork WHAT YOU WILL GET FROM US Great team of IT professionals with global working exposureMeal Card and Flexible Benefits – customized according to individual needsOn-going professional and technical training and certifications A multicultural environment in modern offices Choose any day for your vacation from earned public holiday (Saturday and ad hoc)Smart casual everydayGlobal internal job opportunities available within DPDHLUnlimited Outpatient Medical Home office possibilities Sounds good?
WHAT YOU WILL DO ·Assist resolving issues of minor significance ·Help to liaise with other internal departments or project teams for completion of project deliverables ·Apply standard methodologies when creating new programs and applications (developing and coding from specifications) or when maintaining existing ones ·Assist in customizing Commercial off-the-shelf (COTS) based on pre-determined parameters, and executes customizing tests ·Document work using the required standards, methods and tools e.g. produce program and system documentation ·Work with team/ colleagues to ensure plans, processes and activity are aligned to customer needs ·Actively share knowledge or experience with others ·Provide additional support when colleagues require time away to attend training/ development programs ·Convey consistent stated personal values through actions and decisions ·Apply data analysis and data modeling techniques to establish, modify or maintain a data structure and its associated components ·Design, code, test, correct, and document simple programs, and assist in the implementation of software which forms part of a properly engineered information or communications system APPLICATION YOU WILL USE: ·Java and J2EE frameworks, HTML, CSS, JavaScript, WebLogic, Spring, Hibernate and JSF WHAT YOU SHOULD HAVE: If you are highly motivated, creative and desireto start and develop your IT career in afast-paced environment, you have come to the right place!
WHAT YOU WILL DO Be a key influencer to our business colleagues in resolving significant or potential issuesUnderstand your customer by gathering requirement, presenting concepts and proposal, providing updates on deliverables and negotiating issue resolution when neededAct as a coordinator across projects to monitor performance to ensure delivery of quality application on timeWork with external parties in assembling the system components with standardized modulesCustomizeCommercial Off-The-Shelf (COTS)based on pre-determined parameters, and execute customizing testsEnsure works are documented according to required standards, methods and toolsAssist in the define, initiate and design of architecture in projects/ program WHAT YOU SHOULD HAVE: Working experience and knowledge in Software Development Life Cycle (SDLC) with relevant qualification in IT fieldPassion in developing a high quality softwareInquisitive and analytical mind Strong IT and business acumenProven ability to work in a multi-cultural and multi-functional environmentCustomer and end-user focusedExcellent oral and written communications skills WHAT IS THE PLUS POINT(S) Minimum 6+ Years of experience with proven Analytical, Programming and Technical consultancy skills in Enterprise Application Integration, Technical integration Design Solution, Providing production support, delivering build and implementation services, Configuring Testing Environments and support end to end testing with customers and 3rd party vendors and familiar with transition to production project documentation and deployment process Expertise in development of Flow Services, Java services, Administration, Troubleshooting, Validations, Broker, UM, Triggers, Notifications, JDBC adapter, Java API, Trading Networks, FTP management, configuration, maintenance and installation, Axway GXS AI , Webmethods, Java, C++, BAM, BPMS, API, Web flow services, Unix Scripting , XML PI WebMethods o webMethods 6.5/7.1.2/8.0.2/9.5/9.8 Integration Platform o Trading Networks 6.1 o webMethods Adapters JDBC, SAP, Web Sphere MQ, XSLT, JMS o Messaging Systems Broker and UM, JMS o Adapter Configuration Tool, Upgrade Utility Tool, Document Tracker o BAM and BPM implementation o Cognos Reporting Web Services, XML and Industry Standards o HTTP, XSLT, REST, SOAP, WSDL, XQL, MQTT, JNDI o EDI (Electronic Data Interchange), EDIFACT, XML, JSON, RossettaNet, ANSI X12 standards, transmission protocols, data structures and Mappings for 810, 850,855 and 997 document types.
WHAT YOU WILL DO Assist resolving issues of minor significance Help to liaise with other internal departments or project teams for completion of project deliverables Apply standard methodologies when creating new programs and applications (developing and coding from specifications) or when maintaining existing ones Assist in customizing Commercial off-the-shelf (COTS) based on pre-determined parameters, and executes customizing tests Document work using the required standards, methods and tools e.g. produce program and system documentation Work with team/ colleagues to ensure plans, processes and activity are aligned to customer needs Actively share knowledge or experience with others Provide additional support when colleagues require time away to attend training/ development programs Convey consistent stated personal values through actions and decisions Apply data analysis and data modeling techniques to establish, modify or maintain a data structure and its associated components Design, code, test, correct, and document simple programs, and assist in the implementation of software which forms part of a properly engineered information or communications system APPLICATION YOU WILL USE: Java and J2EE frameworks, HTML, CSS, JavaScript, WebLogic, Spring, Hibernate and JSF WHAT YOU SHOULD HAVE: If you are highly motivated, creative and desire to start and develop your IT career in a fast-paced environment, you have come to the right place!
WHAT YOU WILL DO Assist resolving issues of minor significance Help to liaise with other internal departments or project teams for completion of project deliverables Apply standard methodologies when creating new programs and applications (developing and coding from specifications) or when maintaining existing ones Assist in customizing Commercial off-the-shelf (COTS) based on pre-determined parameters, and executes customizing tests Document work using the required standards, methods and tools e.g. produce program and system documentation Work with team/ colleagues to ensure plans, processes and activity are aligned to customer needs Actively share knowledge or experience with others Provide additional support when colleagues require time away to attend training/ development programs Convey consistent stated personal values through actions and decisions Apply data analysis and data modeling techniques to establish, modify or maintain a data structure and its associated components Design, code, test, correct, and document simple programs, and assist in the implementation of software which forms part of a properly engineered information or communications system APPLICATION YOU WILL USE: Java and J2EE frameworks, HTML, CSS, JavaScript, WebLogic, Spring, Hibernate and JSF WHAT YOU SHOULD HAVE: If you are highly motivated, creative and desire to start and develop your IT career in a fast-paced environment, you have come to the right place!
WHAT YOU WILL DO Assist resolving issues of minor significance Help to liaise with other internal departments or project teams for completion of project deliverables Apply standard methodologies when creating new programs and applications (developing and coding from specifications) or when maintaining existing ones Assist in customizing Commercial off-the-shelf (COTS) based on pre-determined parameters, and executes customizing tests Document work using the required standards, methods and tools e.g. produce program and system documentation Work with team/ colleagues to ensure plans, processes and activity are aligned to customer needs Actively share knowledge or experience with others Provide additional support when colleagues require time away to attend training/ development programs Convey consistent stated personal values through actions and decisions Apply data analysis and data modeling techniques to establish, modify or maintain a data structure and its associated components Design, code, test, correct, and document simple programs, and assist in the implementation of software which forms part of a properly engineered information or communications system APPLICATION YOU WILL USE: Java and J2EE frameworks, HTML, CSS, JavaScript, WebLogic, Spring, Hibernate and JSF WHAT YOU SHOULD HAVE: If you are highly motivated, creative and desire to start and develop your IT career in a fast-paced environment, you have come to the right place!
What makes you stand out You combine strong analytical and conceptual thinking with a keen understanding of customer needs.You are experienced in Java and JavaScript/TypeScript, familiar with common pitfalls, and know how to catch them early through automated testing.You have hands-on experience with acceptance testing tools such as Playwright, Cypress, or Selenium.You bring solid experience in system testing - using Postman for manual API tests and REST Assured with JUnit for automated ones.You have several years of development experience, with a strong focus on automated integration testing and test strategy design (TDD, BDD, risk-based testing).Ideally, you also have experience creating load test scenarios using JMeter and are familiar with cloud platforms such as Microsoft Azure.You enjoy working with containers and messaging systems like Kafka, and you’re eager to design automated test scenarios across a complex, distributed application landscape.You have practical experience in test case management and documentation, using tools such as Zephyr to ensure full test coverage.You have hands-on experience with system monitoring and observability, using tools such as Grafana and Instana to analyze performance metrics and detect issues early.You speak English fluently and have an good command in German in a business context.